body {
    overflow-x: hidden;
}

.header p {
    z-index: 1;
    font-size: 40px;
    padding: 10px;
    font-family: '隶书', sans-serif;
    position: absolute;
    top: -18px;
    left: 80px;
    color: white;
}

.header img {
    z-index: 1;
    position: absolute;
    float: left;
    top: -20px;
    left: -20px;
    width: 140%;
}

.background-img {
    z-index: 1;
    position: absolute;
    left: -10px;
    top: 105px;
}

.footer p {
    z-index: 1;
    position: absolute;
    top: 790px;
    width: 100%;
    text-align: center;
    font-size: 15px;
    color: black;
}